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2D Keypoint Tracker

The 2D Keypoint Tracker object enables real-time tracking of 18 keypoints (joints) on the human body in 2D space, making it ideal for attaching virtual items to specific body parts. Keypoints represent specific joints, such as the wrists, elbows, knees, and ankles, and serve as markers to track and interpret body movement.

By integrating the Human Action Detection and Human Pose Estimation nodes, this object also supports pose estimation and movement recognition, allowing for interactive effects that respond dynamically to body movements, such as dance effects and gesture-based experiences.

2d keypoint tracker demo

Add a 2D Keypoint Tracker Object​

To add a 2D Keypoint Tracker object:

  1. Go to the Hierarchy panel
  2. Click + Add object
  3. Go to AR Tracking
  4. Select 2D Keypoint Tracker
add keypoint tracker

Assign a Tracked Object​

To attach an object to the selected body part, you must make the object a child of the 2D Keypoint Tracker object. For example, you can parent 2D Keypoint Tracker objects to 2D images so that the images are tracked on the designated body part.

keypoint tracker in hierarchy## Components

The 2D Keypoint Tracker object is made up of the following components, found in the Inspector panel: